592 

ACUS03 KWNS 180725

SWODY3

SPC AC 180724



Day 3 Convective Outlook  

NWS Storm Prediction Center Norman OK

0224 AM CDT Mon May 18 2026



Valid 201200Z - 211200Z



...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS

OF THE MID ATLANTIC AND SOUTHERN HIGH PLAINS...



...SUMMARY...

Scattered thunderstorm activity across the Mid-Atlantic region

Wednesday may pose a risk for wind and hail. Isolated thunderstorms

within the upslope regime in western Texas/eastern New Mexico will

also pose a risk for large hail.



...Discussion...

The mid-level trough across the Great Lakes will continue to lift

northward into Canada D3/Wednesday. A cold front will extend from

the Northeast southward across the southern Ohio Valley into the

lower Mississippi Valley and westward into southwestern Texas. Near

the front across the Mid-Atlantic, sufficient deep layer shear and

MLCAPE will be in place to support a few organized storms, with

potential for damaging winds and large hail which supports inclusion

of a Marginal Risk. 



Further south across western Texas, isolated to scattered afternoon

thunderstorms may develop south of the front within the upslope flow

regime across western Texas into eastern New Mexico. Though deep

layer shear will be generally weak, moderate instability and steep

low to mid-level lapse rates may support a few instances of large

hail and severe winds.



..Thornton.. 05/18/2026



$$